// Copyright (c) 2021 Terminus, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package http

import (
	"net/http"
	"net/http/httputil"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestReverseProxyWithCustom_setModifyResponse(t *testing.T) {
	r := &ReverseProxyWithCustom{
		reverseProxy: &httputil.ReverseProxy{
			ModifyResponse: nil,
		},
	}
	assert.Nil(t, r.reverseProxy.(*httputil.ReverseProxy).ModifyResponse)
	r.setModifyResponse(func(resp *http.Response) error { return nil })
	assert.NotNil(t, r.reverseProxy.(*httputil.ReverseProxy).ModifyResponse)
}

func TestNewReverseProxyWithCustom(t *testing.T) {
	var validFlag bool
	d := func(req *http.Request) { validFlag = true }
	r := NewReverseProxyWithCustom(d)
	rr, ok := r.(*ReverseProxyWithCustom)
	assert.True(t, ok)
	assert.NotNil(t, rr.reverseProxy)
	proxy, ok := rr.reverseProxy.(*httputil.ReverseProxy)
	assert.True(t, ok)
	// set flag in director
	assert.False(t, validFlag)
	proxy.Director(nil)
	assert.True(t, validFlag)
}
